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  1. 16 6月, 2015 11 次提交
  3. 22 5月, 2015 3 次提交
  5. 21 5月, 2015 2 次提交
  7. 12 5月, 2015 1 次提交
  9. 28 4月, 2015 5 次提交
  11. 24 4月, 2015 1 次提交
  13. 23 4月, 2015 1 次提交
  15. 21 4月, 2015 3 次提交
    • D
      ALSA: hda - fix "num_steps = 0" error on ALC256 · 7d1b6e29
      由 David Henningsson 提交于 
      The ALC256 does not have a mixer nid at 0x0b, and there's no
loopback path (the output pins are directly connected to the DACs).

This commit fixes an "num_steps = 0 for NID=0xb (ctl = Beep Playback Volume)"
error (and as a result, problems with amixer/alsamixer).

If there's pcbeep functionality, it certainly isn't controlled by setting an
amp on 0x0b, so disable beep functionality (at least for now).

Cc: stable@vger.kernel.org
BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1446517Signed-off-by: NDavid Henningsson <david.henningsson@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      7d1b6e29
    • T
      ALSA: usb-audio: Fix audio output on Roland SC-D70 sound module · 6d1f2f60
      由 Takamichi Horikawa 提交于 
      Roland SC-D70 reports its device class as vendor specific class and
the quirk QUIRK_AUDIO_FIXED_ENDPOINT was used for audio output.

In the quirks table the sampling rate was hard-coded to 44100 Hz
and therefore not worked when the sound module was in 48000 Hz mode.

In this change the quirk is changed to QUIRK_AUDIO_STANDARD_INTERFACE
but as the sound module reports incorrect bSubframeSize in its
descriptors, additional change is made in format.c to detect it and
to override it (which uses the existing code for Edirol SD-90).

Tested both when the sound module was in 44100 Hz mode and 48000 Hz
mode and both audio input and output. MIDI related part of the driver
is not touched.
Signed-off-by: NTakamichi Horikawa <takamichiho@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      6d1f2f60
    • M
      ALSA: hda - add AZX_DCAPS_I915_POWERWELL to Baytrail · 40cc2392
      由 Mengdong Lin 提交于 
      This patch addes AZX_DCAPS_I915_POWERWELL to BYT (Baytrail).

Like Braswell and Skylake, the HDMI codec on Bytrail is also in the shared
power well with GPU. This power well must be turned on before we reset link
to probe the codec, to avoid communication failure with the codec.

The side effect is that this power is always ON in S0 because the BYT HDMI
codec does not support EPSS or D3ClkStop and so the controller doesn't enter
D3 at runtime, and the HDMI codec and analog codec share a single physical
HD-A link and so we cannot reset the HD-A link freely when we re-enable the
power to use the HDMI codec.

Next step is to test if an AGP reset or double AGP reset on BYT HDMI codec is
okay to bring the HDMI codec back to a functional state after restoring the
power. If okay, we can bind the power on/off with the HDMI codec PM without
interrupting the analog audio.
Signed-off-by: NMengdong Lin <mengdong.lin@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      40cc2392
  17. 20 4月, 2015 2 次提交
  19. 18 4月, 2015 1 次提交
    • A
      sound/oss: fix deadlock in sequencer_ioctl(SNDCTL_SEQ_OUTOFBAND) · bc26d4d0
      由 Alexey Khoroshilov 提交于 
      A deadlock can be initiated by userspace via ioctl(SNDCTL_SEQ_OUTOFBAND)
on /dev/sequencer with TMR_ECHO midi event.

In this case the control flow is:
sound_ioctl()
-> case SND_DEV_SEQ:
   case SND_DEV_SEQ2:
     sequencer_ioctl()
     -> case SNDCTL_SEQ_OUTOFBAND:
          spin_lock_irqsave(&lock,flags);
          play_event();
          -> case EV_TIMING:
               seq_timing_event()
               -> case TMR_ECHO:
                    seq_copy_to_input()
                    -> spin_lock_irqsave(&lock,flags);

It seems that spin_lock_irqsave() around play_event() is not necessary,
because the only other call location in seq_startplay() makes the call
without acquiring spinlock.

So, the patch just removes spinlocks around play_event().
By the way, it removes unreachable code in seq_timing_event(),
since (seq_mode == SEQ_2) case is handled in the beginning.

Compile tested only.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      bc26d4d0
  21. 17 4月, 2015 2 次提交
  23. 16 4月, 2015 3 次提交
  25. 14 4月, 2015 1 次提交
  27. 13 4月, 2015 4 次提交
    • J
      ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T450 · f2aa1110
      由 Jo-Philipp Wich 提交于 
      The Lenovo Thinkpad T450 requires the ALC292_FIXUP_TPT440_DOCK as well in
order to get working sound output on the docking stations headphone jack.

Patch tested on a Thinkpad T450 (20BVCTO1WW) using kernel 4.0-rc7 in
conjunction with a ThinkPad Ultradock.
Signed-off-by: NJo-Philipp Wich <jow@openwrt.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      f2aa1110
    • T
      ALSA: hda - Fix another race in runtime PM refcounting · c3aeda62
      由 Takashi Iwai 提交于 
      Although some races in runtime PM refcount was fixed by the commit
[664c7155: ALSA: hda - Work around races of power up/down with
runtime PM], there is still a race in the following case:

CPU0:                   CPU1 :
runtime suspend:
  codec->in_pm = 1
                        snd_hdac_power_up_pm():
                          pm_runtime_get_sync() skipped
suspend finished:
  codec->in_pm = 0
                        snd_hdac_power_down_pm():
                          pm_runtime_put_*() is called!

For avoiding this situation, increment in_pm flag atomically when it's
non-zero, and decrement accordingly, to ensure that in_pm is set
consistently for the whole concurrent operations.

Also, since atomic_inc_not_zero() and atomic_dec_if_positive() are
lengthy inline functions, move snd_hdac_power_up_pm() and _down_pm()
to sound/hda/hdac_device.c as no inline functions.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      c3aeda62
    • T
      ALSA: hda - Expose codec type sysfs · eacf6e0a
      由 Takashi Iwai 提交于 
      The type field of HD-audio codec object should be exposed to
user-space so that it can identify which driver type to bind (legacy /
asoc).
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      eacf6e0a
    • T
      ALSA: ctl: fix to handle several elements added by one operation for userspace element · e1c78df1
      由 Takashi Sakamoto 提交于 
      An element instance can have several elements with the same feature.
Some userspace applications can add such an element instance by add
operation with the number of elements. Then, the element instance
gets a memory object to keep states of these elements.

But the element instance has just one memory object for the elements.
This causes the same result to each read/write operations to the
different elements.

This commit fixes this bug by allocating enough memory objects to the
element instance for each of elements.
Signed-off-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      e1c78df1